Design for a tab portion of a shingle



FIG. 1 is a frontal view of the tab portion of a shingle of our newdesign;

FIG. 2 is a right side view thereof; and,

FIG. 3 is a lower edge view thereof.

The phantom lines indicate the outline of environment of the design ofthe present invention; namely, of that portion of the shingle which doesnot form part of the design.

The rear view of the shingle is plain and unornamented.

The ornamental design for the tab portion of a shingle, as shown anddescribed.